Journal of Shanghai Jiaotong University ›› 2013, Vol. 47 ›› Issue (04): 532-537.

• Mathematical sciences and chemical • Previous Articles     Next Articles

Verification of the Calculation of Acoustic Field with Typical Bottom Based on Parabolic Equation in Scaled Tank Experiment

 ZHU  Han-Hao, PU  Sheng-Chun, ZHANG  Hai-Gang, LIU  Wei, AN  Xu-Dong   

  1. (Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin, 150001, China)  
  • Received:2012-03-29 Online:2013-04-28 Published:2013-04-28

Abstract: In order to research the calculation of acoustic field based on parabolic equation (PE), a simulation experiment was carried out to analyze the underwater sound propagation with elastic bottom. In the test, a polyvinyl chloride (PVC) slab is used to simulate the elastic bottom, and the transmission losses for two types of seabed, including horizontal and sloping, are measured in an anechoic tank. In the simulation, PE method is used to calculate the horizontal seabed model, and the inclined is calculated with the coordinate mapping PE method. The accuracy of the two PE methods was verified by the agreement between the numerical simulation and the results of the measured experimental data.

Key words: parabolic equation, scaled experiment, elastic bottom, calculation of acoustic field

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